TMA-IIS-3.7

Ensure 'cookies' are set with HttpOnly attribute

MediaNivel 1Automatizadaiis

Descripción

The httpOnlyCookies attribute of the httpCookies node determines if IIS will set the HttpOnly flag on HTTP cookies it sets. The HttpOnly flag indicates to the user agent that the cookie must not be accessible by client-side script (i.e document.cookie). It is recommended that the httpOnlyCookies attribute be set to true. httpCookies httpOnlyCookies must be true in the root web.config and every site. PowerShell 5.1 with the WebAdministration module; run elevated.

Cómo se verifica

Método de auditoría: Comando de shell

shell

Import-Module WebAdministration -ErrorAction Stop; $paths = @('MACHINE/WEBROOT') + @(Get-Website | ForEach-Object { "IIS:\Sites\$($_.Name)" }); $bad = @($paths | Where-Object { $c = Get-WebConfiguration -Filter 'system.web/httpCookies' -PSPath $_; $c.httpOnlyCookies -ne $true }); if ($bad.Count -eq 0) { 'compliant' } else { 'noncompliant' }

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Add <httpCookies httpOnlyCookies="true" /> inside <system.web> of each application web.config.

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: iissession
Referencia: CIS Microsoft IIS 10 Benchmark v1.2.1 - 3.7 Ensure 'cookies' are set with HttpOnly attribute

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target iis